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1
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* TODO
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2
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** include files
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3
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** main function
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4
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*** add a clean test to forbid array arguments for main node
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5
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(no available input/output methods)
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6
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** test suite
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7
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*** for complex dependency graphs (notably mem/mem cyclic dependencies)
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8
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*** for clocks
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9
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*** for arrays (non-generic nodes)
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10
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** compare with lus2c (verimag)
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11
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** extension
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12
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*** array access: done
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13
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*** add an option to dynamically check array accesses: done
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14
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*** power operator: done
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15
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*** automaton
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16
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*** annotations to ACSL
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17
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** init checking
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18
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*** to be done !!!
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19
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** normalization
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20
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*** sub-expression sharing seems to be not totally working: fixed
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21
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*** improve behavior for power and access operators:done
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22
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*** more type-directed normalization (notably to improve code gen for arrays): done
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23
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*** reuse of dead vars instead of systematically allocating new local vars
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24
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*** add a clean test for used but undefined nodes
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25
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** typing
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26
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*** correct typing of arith ops (real/int with subtyping ?)
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27
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*** display array dimensions with correct names: done
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28
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*** clocks must not be static inputs: done
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29
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** clock calculus
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30
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*** extension from named clocks to valued clocks ?
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31
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*** static inputs should be polymorphic, as global constants are: done
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32
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33
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* Horn backend
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34
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** enum types for automaton
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35
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- issues with MBranches and clocks
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36
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- control-on-clock generates a "if cond then expr else nothing
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37
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- it has to be expressed in a functional way to enable its expression as
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38
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horn
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39
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40
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41
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- The issue seems mainly to lie in the out = f(in) every cond
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42
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this generates the follwoingg imperative statements
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43
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if cond then f_reset(*mem) else {(nothing, ie. not reset)}
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44
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f_step(in,*put,*mem)
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45
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46
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In the machine code, this is done by generating the sequence of 2 instructions
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47
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1. if cond then MReset() else {} (* creation of a conditional statement *)
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48
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2. MStep()
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49
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50
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- For Xavier: Syntactically, how could you "reset" an arrow? When we see an
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51
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Expr_arrow, we introduce a MReset instance to the set of instruction on the
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52
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reset function of the current node, but is there any mean to do it with
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53
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"every" ?
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54
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55
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56
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57
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58
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x = expr when c
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59
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60
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if c then
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61
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x= expr
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62
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63
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else {}
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64
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65
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x = if c then expr else x
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